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83744484 = 2236978707
BaseRepresentation
bin1001111110111…
…01011011100100
312211120122211120
410333131123210
5132414310414
612150533540
72034550005
oct477353344
9184518746
1083744484
11432a951a
12240672b0
1314471865
14b19d1ac
1575432a9
hex4fdd6e4

83744484 has 12 divisors (see below), whose sum is σ = 195403824. Its totient is φ = 27914824.

The previous prime is 83744483. The next prime is 83744491. The reversal of 83744484 is 48444738.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (83744483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489342 + ... + 3489365.

It is an arithmetic number, because the mean of its divisors is an integer number (16283652).

Almost surely, 283744484 is an apocalyptic number.

It is an amenable number.

83744484 is an abundant number, since it is smaller than the sum of its proper divisors (111659340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83744484 is a wasteful number, since it uses less digits than its factorization.

83744484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978714 (or 6978712 counting only the distinct ones).

The product of its digits is 344064, while the sum is 42.

The square root of 83744484 is about 9151.2012326251. The cubic root of 83744484 is about 437.5074005823.

The spelling of 83744484 in words is "eighty-three million, seven hundred forty-four thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 6978707 13957414 20936121 27914828 41872242 83744484